Best Mass Builder 2026

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Last Updated - 03.02.2026

Best Choice

01

Mammut

Mammut Nutrition Crash Weight Gainer Powder Cookies - 4.5 kg - 518 kcal/shake for weight gain - 80% carbohydrates - 4-component protein - Ideal for endurance and performance athletes

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16% Off
9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ideal for endurance and professional athletes.
High carbohydrate content with 80% carbohydrates (vanilla).
Contribution to weight gain.
3-component carbohydrate complex and 4-component protein complex.
1410 kcal per 3 shakes.

44,50 € 52,99 €(16% Off off)
Value for Money

02

Mammut

Mammut Nutrition Crash Weight Gainer Powder Cookies - 4.5 kg - 518 kcal/shake for weight gain - 80% carbohydrates - 4-component protein - Ideal for endurance and performance athletes

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20% Off
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ideal for endurance and professional athletes.
High carbohydrate content with 80% carbohydrates (vanilla).
Contribution to weight gain.
3-component carbohydrate complex and 4-component protein complex.
1410 kcal per 3 shakes.

42,27 € 52,99 €(20% Off off)
03

Mammut

Mammut Nutrition Crash Weight Gainer Powder Vanilla - 1.4 kg - 518 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

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12% Off
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ideal for endurance and performance athletes – even athletes in the strength and endurance range rely on a targeted carbohydrate supply. Successful performance and endurance athletes know what important role carbohydrates play in their diet
High carbohydrate content with 80 percent carbohydrates – in order to gain weight or mass, a positive energy balance must be achieved, the body must be supplied daily more energy through e.g. carbohydrates than it consumes
Contribution to weight gain – especially "hard gainers", i.e. athletes who can gain weight by nature should use this carbohydrate megabooster
868 KCAL PRO 2 SHAKES – For a shake, mix 70 g Weight Gainer Crash 5000 with 250 ml milk (3.5 percent) and enjoy it before or after training. Depending on calorie needs and training intensity, up to 3 shakes per day can be drunk
3-component carb complex and 4-component protein complex – with optimally coordinated carbohydrates such as dextrose and maltodextrin as well as the 4-component protein complex of soy, chicken, whey and milk protein

21,99 € 24,99 €(12% Off off)
04

Mammut

Mammut Nutrition Crash Weight Gainer Powder Vanilla - 1.4 kg - 518 kcal/Shake for Weight Gain - 80% Carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes

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16% Off
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Ideal for endurance and performance athletes – even athletes in the strength and endurance range rely on a targeted carbohydrate supply. Successful performance and endurance athletes know what important role carbohydrates play in their diet
High carbohydrate content with 80 percent carbohydrates – in order to gain weight or mass, a positive energy balance must be achieved, the body must be supplied daily more energy through e.g. carbohydrates than it consumes
Contribution to weight gain – especially "hard gainers", i.e. athletes who can gain weight by nature should use this carbohydrate megabooster
868 KCAL PRO 2 SHAKES – For a shake, mix 70 g Weight Gainer Crash 5000 with 250 ml milk (3.5 percent) and enjoy it before or after training. Depending on calorie needs and training intensity, up to 3 shakes per day can be drunk
3-component carb complex and 4-component protein complex – with optimally coordinated carbohydrates such as dextrose and maltodextrin as well as the 4-component protein complex of soy, chicken, whey and milk protein

20,89 € 24,99 €(16% Off off)
05

Bulk

Bulk Complete Mass Gainer, Chocolate Caramel, 1 kg, 45 g Tin, and 5 g BCAAs Portion, High Caloric Mass Gainer, Supports Muscle Building, Easy Mix, Delicious Flavours

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SUPPORTS MUSCLE BUILDING The balanced blend of protein and carbohydrates promotes fat-free muscle gain.
High-calorie formula to support your mass phase: with 535 kcal per serving, it provides the energy you need for effective muscle building.
High protein content for optimal muscle building: each 135 g serving provides 45 g of high-quality protein to support your daily fitness goals.
Delicious flavours with easy blend for maximum comfort.
A simple and practical option for anyone who wants to increase their calorie and nutrient intake comfortably.

12,49 €
06

Bulk

Bulk Complete Mass Gainer, Chocolate Caramel, 1 kg, 45 g Tin, and 5 g BCAAs Portion, High Caloric Mass Gainer, Supports Muscle Building, Easy Mix, Delicious Flavours

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

SUPPORTS MUSCLE BUILDING The balanced blend of protein and carbohydrates promotes fat-free muscle gain.
High-calorie formula to support your mass phase: with 535 kcal per serving, it provides the energy you need for effective muscle building.
High protein content for optimal muscle building: each 135 g serving provides 45 g of high-quality protein to support your daily fitness goals.
Delicious flavours with easy blend for maximum comfort.
A simple and practical option for anyone who wants to increase their calorie and nutrient intake comfortably.

11,87 €
07

Bulk

Bulk Complete Mass Gainer, Vanilla, 2.5 kg, 45 g Protein and 5 g BCAAs per Serving, High Caloric Mass Gainer Concentrate, Supports Muscle Building, Easy to Mix, Delicious Flavours

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

SUPPORTS MUSCLE BUILDING The balanced blend of protein and carbohydrates promotes fat-free muscle gain.
Mass building from a leading sports nutrition brand
High-calorie formula to support your mass phase: with 535 kcal per serving, it provides the energy you need for effective muscle building.
High protein content for optimal muscle building: each 135 g serving provides 45 g of high-quality protein to support your daily fitness goals.
Helps build and maintain muscle mass; the perfect protein shake for real "hard gainers" or for those looking to gain weight
Delivers an impressive 500 kcal and 40 g protein per serving
Delivers 66g of carbohydrates
Delicious flavours with easy blend for maximum comfort.
Available in a range of flavours and sizes
A simple and practical option for anyone who wants to increase their calorie and nutrient intake comfortably.

33,99 €
08

Bulk

Bulk Complete Mass Gainer, Vanilla, 2.5 kg, 45 g Protein and 5 g BCAAs per Serving, High Caloric Mass Gainer Concentrate, Supports Muscle Building, Easy to Mix, Delicious Flavours

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10% Off
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

SUPPORTS MUSCLE BUILDING The balanced blend of protein and carbohydrates promotes fat-free muscle gain.
Mass building from a leading sports nutrition brand
High-calorie formula to support your mass phase: with 535 kcal per serving, it provides the energy you need for effective muscle building.
High protein content for optimal muscle building: each 135 g serving provides 45 g of high-quality protein to support your daily fitness goals.
Helps build and maintain muscle mass; the perfect protein shake for real "hard gainers" or for those looking to gain weight
Delivers an impressive 500 kcal and 40 g protein per serving
Delivers 66g of carbohydrates
Delicious flavours with easy blend for maximum comfort.
Available in a range of flavours and sizes
A simple and practical option for anyone who wants to increase their calorie and nutrient intake comfortably.

32,29 € 35,80 €(10% Off off)
09

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73kg, packaging may vary

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18% Off
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary: updated look, same trusted quality.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

40,92 € 49,99 €(18% Off off)
10

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73kg, packaging may vary

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18% Off
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary: updated look, same trusted quality.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

40,92 € 49,99 €(18% Off off)